#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<assert.h>
int my_strlen(const char* string)
{
	assert(string != NULL);
	int n = 0;
	while (*string++)
	{
		n++;
	};
	return n;
}
int main()
{
	char string[] = "hell0";
	printf("%d", my_strlen(string));
}